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One or Morethan One Options Correct Type
Direction (Q. Nos. 11-20) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.
Q. ZnS and PbS present in a sulphide ore can be separated by using selectively suitable chemical. The incorrect statement in this is
- a)Depressant is potassium ethyl xanthat
- b)Depressant is NaCN
- c)In this ZnS is selectively prevented by NaCN from coming to the froth
- d)In this PbS is selectively by NaCN from coming to the froth
Correct answer is option 'A,D'. Can you explain this answer?
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Verified Answer
One or Morethan One Options Correct TypeDirection (Q. Nos. 11-20) This...
Depressants are used to prevent one type of sulphide ore particles from forming the froth with air bubbles, e.g. NaCN. It is used to separate lead sulphide (PbS) ore from zinc sulphide (ZnS) ore.
4NaCN + ZnS → Na2[Zn(CN)4] + Na2S
4NaCN + ZnS → Na2[Zn(CN)4] + Na2S
Most Upvoted Answer
One or Morethan One Options Correct TypeDirection (Q. Nos. 11-20) This...
Explanation:
ZnS and PbS present in a sulphide ore can be separated by using selectively suitable chemical. The given statements are:
a) Depressant is potassium ethyl xanthat - Incorrect
b) Depressant is NaCN - Correct
c) In this ZnS is selectively prevented by NaCN from coming to the froth - Correct
d) In this PbS is selectively by NaCN from coming to the froth - Incorrect
Explanation of options:
a) Depressant is potassium ethyl xanthat - Incorrect
Potassium ethyl xanthate is a collector and not a depressant. It is used to selectively float lead sulfide (PbS) by acting as a collector. Therefore, statement (a) is incorrect.
b) Depressant is NaCN - Correct
NaCN is a depressant and it selectively prevents ZnS from coming to the froth. Therefore, statement (b) is correct.
c) In this ZnS is selectively prevented by NaCN from coming to the froth - Correct
NaCN selectively prevents ZnS from coming to the froth by forming a complex with ZnS. Therefore, statement (c) is correct.
d) In this PbS is selectively by NaCN from coming to the froth - Incorrect
NaCN selectively floats PbS by acting as a collector. Therefore, statement (d) is incorrect.
ZnS and PbS present in a sulphide ore can be separated by using selectively suitable chemical. The given statements are:
a) Depressant is potassium ethyl xanthat - Incorrect
b) Depressant is NaCN - Correct
c) In this ZnS is selectively prevented by NaCN from coming to the froth - Correct
d) In this PbS is selectively by NaCN from coming to the froth - Incorrect
Explanation of options:
a) Depressant is potassium ethyl xanthat - Incorrect
Potassium ethyl xanthate is a collector and not a depressant. It is used to selectively float lead sulfide (PbS) by acting as a collector. Therefore, statement (a) is incorrect.
b) Depressant is NaCN - Correct
NaCN is a depressant and it selectively prevents ZnS from coming to the froth. Therefore, statement (b) is correct.
c) In this ZnS is selectively prevented by NaCN from coming to the froth - Correct
NaCN selectively prevents ZnS from coming to the froth by forming a complex with ZnS. Therefore, statement (c) is correct.
d) In this PbS is selectively by NaCN from coming to the froth - Incorrect
NaCN selectively floats PbS by acting as a collector. Therefore, statement (d) is incorrect.
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One or Morethan One Options Correct TypeDirection (Q. Nos. 11-20) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q.ZnS and PbS present in a sulphide ore can be separated by using selectively suitable chemical. The incorrect statement in this isa)Depressant is potassium ethyl xanthatb)Depressant is NaCNc)In this ZnS is selectively prevented by NaCN from coming to the frothd)In this PbS is selectively by NaCN from coming to the frothCorrect answer is option 'A,D'. Can you explain this answer?
Question Description
One or Morethan One Options Correct TypeDirection (Q. Nos. 11-20) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q.ZnS and PbS present in a sulphide ore can be separated by using selectively suitable chemical. The incorrect statement in this isa)Depressant is potassium ethyl xanthatb)Depressant is NaCNc)In this ZnS is selectively prevented by NaCN from coming to the frothd)In this PbS is selectively by NaCN from coming to the frothCorrect answer is option 'A,D'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about One or Morethan One Options Correct TypeDirection (Q. Nos. 11-20) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q.ZnS and PbS present in a sulphide ore can be separated by using selectively suitable chemical. The incorrect statement in this isa)Depressant is potassium ethyl xanthatb)Depressant is NaCNc)In this ZnS is selectively prevented by NaCN from coming to the frothd)In this PbS is selectively by NaCN from coming to the frothCorrect answer is option 'A,D'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for One or Morethan One Options Correct TypeDirection (Q. Nos. 11-20) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q.ZnS and PbS present in a sulphide ore can be separated by using selectively suitable chemical. The incorrect statement in this isa)Depressant is potassium ethyl xanthatb)Depressant is NaCNc)In this ZnS is selectively prevented by NaCN from coming to the frothd)In this PbS is selectively by NaCN from coming to the frothCorrect answer is option 'A,D'. Can you explain this answer?.
One or Morethan One Options Correct TypeDirection (Q. Nos. 11-20) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q.ZnS and PbS present in a sulphide ore can be separated by using selectively suitable chemical. The incorrect statement in this isa)Depressant is potassium ethyl xanthatb)Depressant is NaCNc)In this ZnS is selectively prevented by NaCN from coming to the frothd)In this PbS is selectively by NaCN from coming to the frothCorrect answer is option 'A,D'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about One or Morethan One Options Correct TypeDirection (Q. Nos. 11-20) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q.ZnS and PbS present in a sulphide ore can be separated by using selectively suitable chemical. The incorrect statement in this isa)Depressant is potassium ethyl xanthatb)Depressant is NaCNc)In this ZnS is selectively prevented by NaCN from coming to the frothd)In this PbS is selectively by NaCN from coming to the frothCorrect answer is option 'A,D'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for One or Morethan One Options Correct TypeDirection (Q. Nos. 11-20) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q.ZnS and PbS present in a sulphide ore can be separated by using selectively suitable chemical. The incorrect statement in this isa)Depressant is potassium ethyl xanthatb)Depressant is NaCNc)In this ZnS is selectively prevented by NaCN from coming to the frothd)In this PbS is selectively by NaCN from coming to the frothCorrect answer is option 'A,D'. Can you explain this answer?.
Solutions for One or Morethan One Options Correct TypeDirection (Q. Nos. 11-20) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q.ZnS and PbS present in a sulphide ore can be separated by using selectively suitable chemical. The incorrect statement in this isa)Depressant is potassium ethyl xanthatb)Depressant is NaCNc)In this ZnS is selectively prevented by NaCN from coming to the frothd)In this PbS is selectively by NaCN from coming to the frothCorrect answer is option 'A,D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12.
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Here you can find the meaning of One or Morethan One Options Correct TypeDirection (Q. Nos. 11-20) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q.ZnS and PbS present in a sulphide ore can be separated by using selectively suitable chemical. The incorrect statement in this isa)Depressant is potassium ethyl xanthatb)Depressant is NaCNc)In this ZnS is selectively prevented by NaCN from coming to the frothd)In this PbS is selectively by NaCN from coming to the frothCorrect answer is option 'A,D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
One or Morethan One Options Correct TypeDirection (Q. Nos. 11-20) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q.ZnS and PbS present in a sulphide ore can be separated by using selectively suitable chemical. The incorrect statement in this isa)Depressant is potassium ethyl xanthatb)Depressant is NaCNc)In this ZnS is selectively prevented by NaCN from coming to the frothd)In this PbS is selectively by NaCN from coming to the frothCorrect answer is option 'A,D'. Can you explain this answer?, a detailed solution for One or Morethan One Options Correct TypeDirection (Q. Nos. 11-20) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q.ZnS and PbS present in a sulphide ore can be separated by using selectively suitable chemical. The incorrect statement in this isa)Depressant is potassium ethyl xanthatb)Depressant is NaCNc)In this ZnS is selectively prevented by NaCN from coming to the frothd)In this PbS is selectively by NaCN from coming to the frothCorrect answer is option 'A,D'. Can you explain this answer? has been provided alongside types of One or Morethan One Options Correct TypeDirection (Q. Nos. 11-20) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q.ZnS and PbS present in a sulphide ore can be separated by using selectively suitable chemical. The incorrect statement in this isa)Depressant is potassium ethyl xanthatb)Depressant is NaCNc)In this ZnS is selectively prevented by NaCN from coming to the frothd)In this PbS is selectively by NaCN from coming to the frothCorrect answer is option 'A,D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice One or Morethan One Options Correct TypeDirection (Q. Nos. 11-20) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q.ZnS and PbS present in a sulphide ore can be separated by using selectively suitable chemical. The incorrect statement in this isa)Depressant is potassium ethyl xanthatb)Depressant is NaCNc)In this ZnS is selectively prevented by NaCN from coming to the frothd)In this PbS is selectively by NaCN from coming to the frothCorrect answer is option 'A,D'. Can you explain this answer? tests, examples and also practice Class 12 tests.
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